Meanwhile, Ukraine has accused Russian troops of shelling the grounds of the Zaporizhzhia nuclear power plant again over the past 24 hours. But Moscow in turn says Ukrainian forces have been shelling the plant.
The head of the plant's Ukrainian operator, Petro Kotin of Enerhoatom, has warned that radiation could be released locally if missiles hit the spent fuel stored beside the reactors.
"As a result of periodic shelling, the infrastructure of the station has been damaged, there are risks of hydrogen leakage and sputtering of radioactive substances, and the fire hazard is high," Enerhoatom said on Telegram.
Local officials have also reported that Russian artillery is firing at Ukrainian towns across the Dnipro river from the plant.
Also on Sunday, the Ukrainian army shelled a factory in the Russian-occupied town of Nova Kakhovka in Kherson region. Serhiy Khlan, a senior Ukrainian official in the region, said Russian troops were using it as a military base.
The BBC is unable to independently verify the claims on either side.
